[sdiy] capacitor i.d. please

Neil Johnson nej22 at hermes.cam.ac.uk
Mon Dec 23 22:41:14 CET 2002


Hi,

> ceramic disc marked: 104M
> maroon polyester marked: 103 K
> blue ceramic marked: 224

Further to Paul's answer, there's more info on my resistor codes
information page (http://www.njohnson.co.uk/resvalues.html), including
what the letters for tolerance mean (in your case, "M" = 20%, "K" = 10%).

For what it's worth, I usually interpret them as "digit digit
no.of.zeroes".  In the above, that would be:

> "10" and 4 zeroes => 100000 = 100,000pF = 100nF = 0.1uF,  20%
> "10" and 3 zeroes => 10000  =  10,000pF =  10nF = 0.01uF, 10%
> "22" and 4 zeroes => 220000 = 220,000pF = 220nF = 0.22uF

Hope this helps,
Neil

--
Neil Johnson :: Computer Laboratory :: University of Cambridge ::
http://www.njohnson.co.uk          http://www.cl.cam.ac.uk/~nej22
----  IEE Cambridge Branch: http://www.iee-cambridge.org.uk  ----



More information about the Synth-diy mailing list